mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
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74 lines
3.1 KiB
C
74 lines
3.1 KiB
C
/*
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* FreeRTOS V202107.00
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* Copyright (C) Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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*/
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#include "proof/queue.h"
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/* In this case we cannot wrap the macro in a function call to give a function
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* contract because we require annotations within the macro body, which is not
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* supported by VeriFast */
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#define prvLockQueue( pxQueue ) \
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taskENTER_CRITICAL(); \
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{ \
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if( ( pxQueue )->cRxLock == queueUNLOCKED ) \
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{ \
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( pxQueue )->cRxLock = queueLOCKED_UNMODIFIED; \
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} \
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if( ( pxQueue )->cTxLock == queueUNLOCKED ) \
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{ \
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( pxQueue )->cTxLock = queueLOCKED_UNMODIFIED; \
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} \
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} \
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taskEXIT_CRITICAL()
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void wrapper_prvLockQueue( QueueHandle_t xQueue )
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/*@requires [1/2]queuehandle(xQueue, ?N, ?M, ?is_isr) &*& is_isr == false &*&
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* [1/2]queuelock(xQueue);@*/
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/*@ensures [1/2]queuehandle(xQueue, N, M, is_isr) &*&
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* [1/2]xQueue->locked |-> ?m &*&
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* mutex_held(m, queue_locked_invariant(xQueue), currentThread, 1/2) &*&
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* queue_locked_invariant(xQueue)();@*/
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{
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taskENTER_CRITICAL();
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/*@open queue(xQueue, ?Storage, N, M, ?W, ?R, ?K, ?is_locked, ?abs);@*/
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{
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if( ( xQueue )->cRxLock == queueUNLOCKED )
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{
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( xQueue )->cRxLock = queueLOCKED_UNMODIFIED;
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}
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if( ( xQueue )->cTxLock == queueUNLOCKED )
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{
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( xQueue )->cTxLock = queueLOCKED_UNMODIFIED;
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}
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}
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/*@close queue(xQueue, Storage, N, M, W, R, K, true, abs);@*/
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taskEXIT_CRITICAL();
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#ifdef VERIFAST /*< ghost action */
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mutex_acquire( xQueue->locked );
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#endif
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}
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